What is Water Hammer?

Water hammer is the term used to describe loud, banging noises in your pipes. Water hammer is the result of a pressure surge, or high-pressure shockwave that propagates through a piping system when a fluid in motion is forced to change direction or stop abruptly. It occurs when a quick closing valve shuts and rapidly stops the flow of water.

The banging of water pipes is not only annoying but damaging to pipes and appliances. It is necessary to apply water hammer arrestors on your household washing machine.

How does water hammer arrestor work?

When a valve closes quickly and stops the flow, that momentum shakes and pounds pipes. The sliding piston absorbs this sudden pressure changes and keeps the pipes from banging. It solves this condition with a cushion of air that absorbs the momentum.

For installation, select a location as close to the source of shock (i.e.dishwasher, icemaker, toilet or faucet) as possible. It can be installed vertically, horizontally or at any angle.

Note: For your safety these units are pre-charged at the factory and are not rechargeable or repairable.